JPH078968Y2 - Mobile air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a mobile air conditioner that selectively supplies cold air or warm air to a standby space such as an aircraft or other target space to cool or heat the target space. Regarding

“Prior Art” Conventionally, it is uneconomical to cool an aircraft in standby by driving an auxiliary engine in the aircraft. Therefore, in general, a vehicle equipped with a cooling device is brought closer to the aircraft side to cool the aircraft. The cool air generated inside is sent to the inside of the machine through a blower pipe to perform cooling.

Also, in order to supply stable cold air in response to frequent arrivals and departures of aircraft, a brine cooling tank and a cooling device are connected, and a plurality of heat storage blowers for storing heat in the brine cooling tank are provided.
Technology has also been developed to supply cold air to a large number of aircraft with a single cooling device.

(Japanese Patent Application No. 59-229673) "Problems to be solved by the device" However, all of the above-mentioned devices are mobile vehicles dedicated to cooling, and therefore, when heating is performed in winter, a dedicated mobile device equipped with a heating device is additionally installed. You have to prepare a dolly, which is wasteful both in terms of cost and parking space.

For this reason, it is possible to use it as a heat pump cycle by switching the valves of the refrigeration cycle in the above device, and it is possible to use both heating and cooling in one refrigeration and heat pump cycle, but in recent years the aircraft has become a jumbo. Currently, it is not easy to heat multiple aircraft with one heat pump due to limited capacity.

Further, at an airport in a cold region such as Hokkaido, the outside air temperature particularly at night is lowered to around −15 to −20 ° C., which makes it difficult to smoothly operate the heat pump cycle using the outside air as an evaporation heat source.

In view of the drawbacks of the prior art, it is an object of the present invention to provide a mobile air conditioner having a heating heat capacity that can heat a plurality of aircraft at the same time at an airport in a cold region.

Another object of the present invention is to provide a mobile cooling and heating device in consideration of safety.

[Means for Solving the Problem] In order to achieve the technical problem, the present invention is configured so that the blower 2 can be connected to the inlet side and the blower pipe 3 can be connected to the outlet end side as shown in FIG. The blower passage 1 described above, the refrigerating apparatus 4 having the cooling unit 10 having the evaporator coil 11 inserted therein, and the dry boiler 5 having the heating unit 13 having the heating tube 12 inserted therein are mounted on the vehicle 6 or another movable base 14. In this case, the cooling section 10 and the heating section 13 are arranged in series in the blowing passage 1 from the upstream side in the blowing direction, at a predetermined distance in series, in other words, heating. The heating unit 13 and the cooling unit 10 include a gas leakage detector for preventing flashback due to gas leakage of fuel gas from the heating unit 13 and the like. We propose a mobile cooling and heating system characterized by: .

[Operation] According to such technical means, the cooling unit 10 and the heating unit 13 are arranged in series in the one air passage 1 so that the refrigerating apparatus 4 and the dry boiler 5 are selectively driven, Cold air or warm air can be selectively supplied to the inside of the aircraft through a blower pipe 3 connected to the outlet end of the passage 1, whereby it is possible to appropriately cool or heat the aircraft on standby by using one moving vehicle 6. Can be done.

Although warm (hot) air flows into the blower passage 1 by the heating of the dry boiler 5, the cooling section 10 is arranged on the upstream side of the heating section 13 and separated by a predetermined distance. It is possible to avoid an abnormal temperature rise of the refrigerant in the evaporator coil 11 that occurs, and prevent the refrigeration cycle from being worn and broken.

Further, in the present invention, a gas leak detector for preventing flashback due to a gas leak of the fuel gas from the heating section 13 is provided in the separated portion 15 to further improve safety.

Further, since both the cooling unit 10 and the heating unit 13 are configured to be in direct contact with the heat (cooling) medium via the evaporator coil 11 or the heating pipe 12, the compactness of the entire apparatus is achieved. Together with this, the heat exchange rate improves.

Further, since the dry boiler 5 is used as a heat source for heating, it is possible to cope with an aircraft that requires a large heat capacity because it becomes jumbo even in a cold region in addition to improving the heat exchange rate.

[Embodiment] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. However, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but merely illustrative examples. Nothing more than.

1 to 3 show a mobile cooling and heating apparatus according to an embodiment of the present invention, which is constructed by mounting a cooling and heating apparatus in a cargo bed with a roof of a truck.

First, the schematic configuration of the cooling and heating device will be described with reference to FIG. 1. Reference numeral 1 is a ventilation passage having an inlet side to which a blowing fan 2 is connected. The cooling section 10 in which the cooling air is inserted, the intermediate passage section 15 functioning as a separated portion, the dry boiler 5, and the outlet passage section 16 in which the blower duct 3 is connected to the outlet end side are connected in series.

Further, the intermediate passage portion 15 has at least a total length of 1 m or more, and the cooling portion 10 and the heating portion 13 are separated from each other, and a gas leak detector 17 is internally provided inside the intermediate passage portion 15 so that the combustion gas from the dry boiler 5 Prevents flashback due to leakage.

The refrigeration cycle 4 is a compressor to which a motor M is connected.
It comprises a condenser 21, a condenser 22, an expansion valve 23, and the evaporation coil 11 described above, which are connected by a pipe line 24 to form a Carnot cycle.

As shown in FIG. 2, the dry boiler 5 has a heating pipe 12 having a burner 25 on the lower end side and a smoke exhaust port 26 on the upper end side and having the inside functioning as a combustion chamber 27, and an outer pipe surrounding the periphery thereof. 13
And an intermediate passage portion 15 at the inlet side opening 13a of the outer tube 13.
And the outlet passage portion 16 is connected to the outlet side opening 13b, and the air blown from the intermediate passage portion 15 spirally swirls around the heating pipe 12 while exchanging heat with the internal combustion gas. It is configured so that it can be heated and supplied to the outlet passage 16 side from the outlet side opening 13b.

FIG. 3 shows a truck 6 having a load carrier 14 with a roof in which such a heating / cooling device is incorporated, and a generator 17, a compressor 21, a blower fan 2, and a fan 2 for supplying driving power to the compressor and the like. The blower passage 1 is installed on the cargo bed, and the condenser 22 is attached to the upper space near the roof 18 in the cargo truck 14 via the heat insulating material 19 to cool the compressor and the blower passage 1. With the evaporation coil built in the part 10,
Configure a refrigeration cycle.

According to this embodiment, by driving the refrigeration cycle during cooling, and by burning the burner 25 to heat the dry boiler 5 during heating, cool air is blown from the outlet end side of the blow passage 1 through the blow duct 3. Alternatively, warm air can be selectively supplied, and particularly as a safety measure in the present embodiment, a safety distance of 1 m or more is provided between the cooling unit 10 and the dry boiler 5, and the gas leak detector 17 is provided during the heating operation. The dry boiler 5 is completely separated from the combustion part and the air heating part due to the structure, and the supply air and the smoke are not mixed for safety reasons. And is very advantageous for obtaining clean gas.

[Advantages of the Invention] As described above, according to the present invention, the air blown into the air passage can be selectively heated or cooled, so that the air can be mounted on the bed of the vehicle. Compactness is achieved to some extent, and parking space and running costs can be reduced.

In addition, since the present invention uses a dry boiler, it can obtain a heating heat capacity that is capable of heating a plurality of aircraft at the same time even at an airport in a cold region, and a predetermined safety distance is provided upstream of the heating unit that constitutes the boiler. Since the cooling unit in which the evaporation coil is inserted is arranged at a distance, safety can be ensured.

It has various remarkable effects.

[Brief description of drawings]

1 to 3 are mobile air conditioners according to an embodiment of the present invention, FIG. 3 is an overall configuration diagram mounted on a truck, FIG. 1 is a schematic view showing the air conditioner portion, and FIG. [Fig. 3] is a schematic view showing a configuration of a dry boiler. 2: Blower, 3: Blower pipe, 1: Blower passage 11: Evaporator coil, 10: Cooling unit, 4: Refrigerator 12: Heating pipe, 13: Heating unit, 5: Dry boiler 6: Vehicle, 14: Base , 15: Remote part 17: Gas leak detector

Claims (1)

[Scope of utility model registration request] 1. A mobile air conditioner configured to selectively supply cool air or warm air into one or a plurality of target spaces via a blower pipe, wherein a blower is connected to an inlet side and a blower pipe is connected to an outlet end side. , A refrigerating apparatus having a cooling unit having an evaporator coil inserted therein, and a dry boiler having a heating unit having a heating tube inserted therein, are integrally provided on a movable base such as a vehicle. In addition to being mounted, the cooling section and the heating section are interposed in series in the blowing passage from the upstream side along the blowing direction at a predetermined distance, and a gas is provided in a separation portion between the heating section and the cooling section. A mobile air conditioner equipped with a leak detector